Solid mineral fuels -- Determination of ash

ISO 1171:2010 specifies a method for the determination of the ash of all solid mineral fuels.

Combustibles minéraux solides -- Détermination des cendres

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Status
Published
Publication Date
03-Jun-2010
Current Stage
9060 - Close of review
Start Date
05-Jun-2021
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INTERNATIONAL ISO
STANDARD 1171
Fourth edition
2010-06-15
Solid mineral fuels — Determination of
ash
Combustibles minéraux solides — Détermination des cendres
Reference number
ISO 1171:2010(E)
ISO 2010
---------------------- Page: 1 ----------------------
ISO 1171:2010(E)
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ii © ISO 2010 – All rights reserved
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ISO 1171:2010(E)
Contents Page

Foreword ............................................................................................................................................................iv

Introduction.........................................................................................................................................................v

1 Scope......................................................................................................................................................1

2 Principle..................................................................................................................................................1

3 Apparatus...............................................................................................................................................1

4 Preparation of test sample ...................................................................................................................1

5 Procedure...............................................................................................................................................1

6 Expression of results............................................................................................................................2

7 Precision.................................................................................................................................................2

8 Test report..............................................................................................................................................3

Bibliography........................................................................................................................................................4

© ISO 2010 – All rights reserved iii
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ISO 1171:2010(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 562 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 5, Methods

of analysis.

This fourth edition cancels and replaces the third edition (ISO 1171:1997), of which it constitutes a minor

revision. (It also incorporates the Technical corrigendum ISO 1171:1997/Cor.1:1998.)

iv © ISO 2010 – All rights reserved
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ISO 1171:2010(E)
Introduction

The ash remaining after coal or coke has been incinerated in air is derived from inorganic complexes present

in the original coal substance and from associated mineral matter. Therefore, the result of the determination is

“ash” and not “ash content” as coal does not contain any ash.

The amount of sulfur retained in the ash is in part dependent on the conditions of ashing and, in order to

obtain values for the ash on a comparable basis, it is necessary to adhere strictly to the conditions specified.

© ISO 2010 – All rights reserved v
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INTERNATIONAL STANDARD ISO 1171:2010(E)
Solid mineral fuels — Determination of ash
1 Scope

This International Standard specifies a method for the determination of the ash of all soli

...

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